84860000 hex

Warning-level Device Event Flag

Omron · NJ/NX-series Machine Automation Controller

What does 84860000 hex mean?

A warning-level event occurred in the IO-Link device. This indicates a non-critical event or a condition that requires attention in the IO-Link device, often a precursor to a more severe fault.

Common Causes

  • Use CX-Configurator FDT to confirm the event code of the IO-Link device.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Access the IO-Link master's diagnostic data via Sysmac Studio to identify the specific warning event triggered by the IO-Link device.

  2. 2

    Inspect the IO-Link device cable and connectors for any physical damage, proper seating, and secure termination at both the device and the IO-Link master.

  3. 3

    Measure the supply voltage to the IO-Link device at its power input terminals and compare it against the manufacturer's specified operating range.

  4. 4

    Verify the IO-Link device's parameters and configuration settings within Sysmac Studio against the machine's intended operation and current application requirements.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Omron NJ/NX-series Machine Automation Controller